A robust deuterium abundance; re-measurement of the z = 3.256 absorption system towards the quasar PKS 1937−101

THE PRIMORDIAL DEUTERIUM ABUNDANCE OF THE MOST METAL-POOR DAMPED Lyα SYSTEM∗

“…These measures are presented as a function of [O/H] metallicity in Figure 5 and are listed in Table 3. For other recent D/H measures and a more extensive list of literature measurements, see Riemer-Sørensen et al (2015) and Balashev et al (2016).…”

Nucleosynthesis Predictions and High-Precision Deuterium Measurements

“…Another option is to use the experimental data directly (as in e.g., [35,36]) 4 , which will further increase the deviation between the various predictions from AlterBBN. At this point we do not want to advocate one choice over another, but simply want to emphasise that the choice of rates matters, and unless the specific choice is discussed in the context of each result (which is usually not the case (e.g., [8,11,25])), this deviation between rates should be included as a systematic uncertainty. Better experimental determination of the rates at BBN energies will solve the issue.…”

Evolution of dispersion in the cosmic deuterium abundance

“…The grey lines show the evolution in 100 individual regions in our model, as discussed below. The abundances measured in DLAs at z ∼ 3 from Cooke et al (2014) and Riemer-Sørensen et al (2015) are shown in red and the measurement by Balashev et al (2015) is shown as magenta. In addition, we show the deuterium abundance measured in the local ISM (Linsky et al 2006;Prodanović, Steigman & Fields 2010) (blue) (note that local measurements might have additional uncertainties due to dust depletion effects, see e.g.…”